On 2019-09-30 11:00 PM, wrote:
Note that Elon Musk wants to do similar missions with space-to-space refueling.
Which approach is better?



SpaceX's plan for in-orbit Starship refueling: a second Starship:

https://www.engadget.com/2019/09/28/...ueling-spacex/


It's pretty clear what is less costly and actually feasible for SpaceX....

This is an area whereby NASA is at a distinct advantage. Try going the
commercial route to get the necessary permits, etc. Good Luck...

Dave